Prior knowledge and memory: the episodic encoding of implicitly activated associates and rhymes

Area of Science:

• Cognitive Psychology
• Memory Research
• Attention Studies

Background:

• Familiar word presentation activates related concepts.
• Highly activated concepts can interfere with memory recall.
• The number of activated concepts influences recall difficulty.

Purpose of the Study:

• Investigate how study-trial orientation and test delay affect encoding of rhyme- and meaning-related concepts.
• Determine the conditions under which semantic and phonemic interference impact memory.
• Explore the role of attentional processing in concept encoding.

Main Methods:

• Experiments manipulating study-trial orientation (focus on meaning vs. rhyme).
• Introduction of varying delays between word presentation (study trial) and recall (test trial).
• Assessment of incidental and explicit orientation to concept properties.

Main Results:

• Meaning-related concepts interfered with memory regardless of orientation, but this effect vanished with delayed testing.
• Rhyme-related concepts interfered with memory only when explicit attention was paid to rhyme.
• Rhyme-related interference persisted even after a significant delay.

Conclusions:

• Meaning-related concept encoding appears to be a relatively automatic process.
• Rhyme-related concept encoding requires deliberate attentional focus on the rhyme dimension.
• Differences in interference effects are attributable to distinct attentional processing demands.